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Open Bench Logic Sniffer / Re: Capture Ethernet Packages
I thought I might add for anyone interested:
We've had an interesting solution for many years (since 2006) - a system of quad-MCU units with four transparent (no MAC or IP address) 10/100 connections consuming 1 watt or less (expandable to at least 128 MCUs and 128 10/100 connections). These boxes can be controlled by a 'control box' for all kinds of purposes.
For example, one can transparently 'tap' an incoming connection (straight off of a DSL/cable modem/FRAD, etc.). The boxes pass the traffic with zero overhead/delay (actually, we've seen enhancements in throughput when our hardware is in place due to MTU-'massaging' and proper PCF behaviour injected into the traffic). Whilst passing the traffic, all packets (or a selection of them) are passed to another backend system to be stored/analysed/manipulated. Of course, the manipulation can take place 'inline' and the resulting modified packet can be passed on. An interesting probable feature popped up - scanning/manipulating VOIP data. There's no problem with getting bogged down - all these MCUs work in parallel and can be expanded into a rather large mesh, as well as spewing the data into (a) multi-core PC(s) with a customised OS that only deals with this application...
If there's any interest, please speak up.
---AutomaticLogic